440b front axle seal and berring replacement

[Jsweet440b]

I've never had to replace a axle seal before, I heard there is a special tool you need to use and I also think the betting is bad in my 440b front axle, how do you go about getting to the seal? Any help would be appreciated

[snowstorm]

the front is lees work than the rear. the axle housing will need to come off. its heavy